Perspective on oil flax yield and dry biomass with reduced nitrogen supply

Zhang, Qiaoxia; Gao, Yuhong; Yan, Beibei; Cui, Zhengjun; Wu, Bing; Yang, Kun; Ma, Jun

doi:10.1016/j.ocsci.2020.04.004

Cited by 13 publications

(13 citation statements)

References 6 publications

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“…Irrigation regime signi cantly affected the biomass yield and increased dry matter accumulation after anthesis compared with no irrigation, but over-irrigation signi cantly reduced the photosynthate and grain yield [28][29] . Nitrogen fertilizer application increased dry matter accumulation and nitrogen in rapeseed at different growth stages 30 ; however, excessive N application reduced the dry biomass accumulation rate of plant 31 . Wang et al (2018) 6 found that irrigation can promote plants' ability to absorb nutrients and fertilizer use e ciency.…”

Section: Biomass Accumulation and Grain Yieldmentioning

confidence: 95%

Water and Nitrogen Coupling Effects on Grain Yield, Water and Nitrogen use Efficiency of Oilseed Flax in Semiarid Area of China

Cui¹,

Gao²,

Yan³

et al. 2021

Preprint

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Irrigation and nitrogen management are essential for sustainable agricultural development in arid and semi-arid regions. Lower water availability and fertilizer utilization are two major factors of constrainting agricultural production in the semi-arid regions. Therefore, improving the utilization efficiency of water and fertilizer has become an important research goal. A two-year field experiment was laid out in a split-plot design with no irrigation (I0), 1200 m3 ha−1 (I1200) and 1800 m3 ha−1 (I1800) as the main factor and 0 (N0), 60 (N60) and 120 (N120) kg N ha−1 nitrogen rate as a sub-factor to investigate the effects of irrigation and nitrogen rates on precipitation storage efficiency (PSE), soil water storage, grain yield, and water and nitrogen use efficiency of oilseed flax in the Loess Plateau of China. The result showed that irrigation and nitrogen significantly increased PSE, soil water storage during the fallow period (ΔSWCf), dry matter accumulation and grain yeild of oilseed flax. However, the change of soil-water storage during the growing season (ΔSWCg) and the change of soil-water storage in the whole year (ΔSWCy) decreased. Soil water storage in irrigation supply treatment at after harvest in each growing season was higher than that in non-irrigation. PSE was highest under I1800N120 treatment. I1800 increased SWSs, SWSh and ETg at 2018 and improved above-ground biomass (anthesis and maturity stage), while decreased WUE and WUEI. Grain yield under 60 and 120 kg N ha−1 with 1800 m3 ha−1 increased by 69.12, 68.07 (2017) and 22.77, 15.23% (2018), respectively, when compared to the I0N0 treatment. Considering flax grain yield, water and nitrogen productivity, 60 or 120 kg/ha N and irrigation of 1800 m3/ha are recommended for water and nitrogen management of oilseed flax in Loess Plateau of China.

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Section: Biomass Accumulation and Grain Yieldmentioning

confidence: 95%

Water and Nitrogen Coupling Effects on Grain Yield, Water and Nitrogen use Efficiency of Oilseed Flax in Semiarid Area of China

Cui¹,

Gao²,

Yan³

et al. 2021

Preprint

Self Cite

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“…To obtain increased seed yield, oilseed flax is sown with a density 25-55 kg/ha, as in this case stem branching is stimulated (Nag et al, 2015). The seed yield of oilseed flax is varied widely from 202 kg/ha to 1991 kg/ha depending on the country and weather conditions of cultivation (Lafond et al, 2008;Zając et al, 2012;Zhang et al, 2020) and the straw yield is ranged from 2360 kg/ha to 3190 kg/ha (Rudik, 2016). The seeds of both the fibre flax and oilseed flax contain 20-40% oil and can be used to obtain oils (Zhang et al, 2011).…”

Section: Flaxmentioning

confidence: 99%

Low-Quality Flax Straw Biomass Harvesting for Subsequent Use as Fuel: A Review

Дударєв

Хомич²

2022

ACM

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Unfavorable conditions for flax growing, harvesting and dew-retting are the reason for the low-quality flax biomass production. This biomass cannot be processed for fiber or other purposes. Therefore, flax straws are burned in the fields or are used as fertilizer by plowing into the soil, which are not good solutions for the environment and subsequent cultivation operations. The limit values of quality properties of fibre flax stem, flax straw and retted straw for their processing are summarized, which can be used to determine the suitability of flax straw biomass for processing or burning. Low-quality flax biomass is inexpensive, ecofriendly and renewable, it can be used as solid fuel for heating greenhouses or buildings located near the field where the flax is grown. Various techniques of fibre flax and oilseed flax harvesting are presented in the article. The technique of low-quality flax harvesting is recommended, which include flax pulling out or flax cutting, flax threshing, flax straw windrow forming, flax straw natural drying on the field in natural way, flax bale forming, flax bale transporting, flax bale burning. This harvesting technology can be used for low-quality fibre flax and oilseed flax. Flax straw biomass can be baled into three bale types: small rectangular bales, big round bales, and big square bales The main requirements for fuel flax biomass bales are recommended. The boiler for burning flax straw bales must be chosen taking into account the shape and size of the bales. For the efficient operation of boilers, it is necessary to take into account the recommended values of bale bulk density and moisture content of flax biomass.

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“…Previous studies have reported that the grain yield is directly determined by EC (effective capsule, which flowers normally and produces a capsule; the branches hang capsule at maturity; ineffective capsule is unable to flower normally or shed the capsules after flowering; the branches are without capsules at maturity) number and grain number per capsule, and these yield components can be regulated by irrigation and nitrogen [ 14 , 15 ]. For example, Zhang et al [ 16 ] reported that the N application rate significantly affected EC numbers and the grain number per capsule of oilseed flax. Zare et al [ 17 ] reported that nitrogen stress occurring in the early season of oilseed flax may result in a loss in grain yield by reducing grain yield components.…”

Section: Introductionmentioning

confidence: 99%

Water and Nitrogen Coupling Increased the Water-Nitrogen Use Efficiency of Oilseed Flax

Cui

Effah

Yan

et al. 2022

Plants

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Increasing water shortages and environmental pollution from excess chemical nitrogen fertilizer use necessitate the development of irrigation-nitrogen conservation technology in oilseed flax production. Therefore, a two-year split-plot design experiment (2017–2018) was conducted with three types of irrigation (I) levels (no irrigation (I0), irrigation of 1200 m3 ha−1 (I1200), and 1800 m3 ha−1 (I1800)) as the main plot and three nitrogen (N) application rates (0 (N0), 60 (N60) and 120 (N120) kg N ha−1) as the subplot in Northwest China to determine the effects of irrigation and N rates on oilseed flax grain yield, yield components, water-use efficiency (WUE), and N partial factor productivity (NPFP). The results show that I1800 optimized the farmland water storage and water storage efficiency (WSE), which gave rise to greater above-ground biomass. Under I1800, the effective capsule (EC) number increased significantly with increasing irrigation amounts, which increased significantly with increasing nitrogen application rate (0–120 kg ha−1). Both irrigation and nitrogen indirectly affect GY by affecting EC; the highest grain yield was observed at the I1800N60 treatment, which increased by 69.04% and 22.80% in 2017 and 2018 compared with the I0N0 treatment, respectively. As a result, both irrigation and N affect grain yield by affecting soil water status, improving above-ground biomass, and finally affecting yield components. In addition, I1800N60 also obtained a higher WUE and the highest NPFP due to a higher grain yield and a lower N application rate. Hence, our study recommends that irrigation with 1800 m3 ha−1 coupled with 60 kg N ha−1 could be a promising strategy for synergistically improving oilseed flax WUE, grain yield and yield components within this semi-arid region.

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Perspective on oil flax yield and dry biomass with reduced nitrogen supply

Cited by 13 publications

References 6 publications

Water and Nitrogen Coupling Effects on Grain Yield, Water and Nitrogen use Efficiency of Oilseed Flax in Semiarid Area of China

Water and Nitrogen Coupling Effects on Grain Yield, Water and Nitrogen use Efficiency of Oilseed Flax in Semiarid Area of China

Low-Quality Flax Straw Biomass Harvesting for Subsequent Use as Fuel: A Review

Water and Nitrogen Coupling Increased the Water-Nitrogen Use Efficiency of Oilseed Flax

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